protect sysctl path with SYS__sysctl instead; from enh@google, ok bcook

src/lib/libcrypto/arc4random/getentropy_linux.c

@@ -1,4 +1,4 @@
-/*	$OpenBSD: getentropy_linux.c,v 1.30 2014/07/21 20:19:47 guenther Exp $	*/
+/*	$OpenBSD: getentropy_linux.c,v 1.31 2014/07/21 23:34:54 deraadt Exp $	*/
 
 /*
  * Copyright (c) 2014 Theo de Raadt <deraadt@openbsd.org>
@@ -76,7 +76,7 @@ int	getentropy(void *buf, size_t len);
 static int gotdata(char *buf, size_t len);
 static int getentropy_getrandom(void *buf, size_t len);
 static int getentropy_urandom(void *buf, size_t len);
-#ifdef CTL_MAXNAME
+#ifdef SYS__sysctl
 static int getentropy_sysctl(void *buf, size_t len);
 #endif
 static int getentropy_fallback(void *buf, size_t len);
@@ -109,7 +109,7 @@ getentropy(void *buf, size_t len)
 	if (ret != -1)
 		return (ret);
 
-#ifdef CTL_MAXNAME
+#ifdef SYS__sysctl
 	/*
 	 * Try to use sysctl CTL_KERN, KERN_RANDOM, RANDOM_UUID.
 	 * sysctl is a failsafe API, so it guarantees a result.  This
@@ -131,7 +131,7 @@ getentropy(void *buf, size_t len)
 	ret = getentropy_sysctl(buf, len);
 	if (ret != -1)
 		return (ret);
-#endif /* CTL_MAXNAME */
+#endif /* SYS__sysctl */
 
 	/*
 	 * Entropy collection via /dev/urandom and sysctl have failed.
@@ -270,7 +270,7 @@ nodevrandom:
 	return -1;
 }
 
-#ifdef CTL_MAXNAME
+#ifdef SYS__sysctl
 static int
 getentropy_sysctl(void *buf, size_t len)
 {
@@ -300,7 +300,7 @@ sysctlfailed:
 	errno = EIO;
 	return -1;
 }
-#endif /* CTL_MAXNAME */
+#endif /* SYS__sysctl */
 
 static int cl[] = {
 	CLOCK_REALTIME,

src/lib/libcrypto/crypto/getentropy_linux.c

@@ -1,4 +1,4 @@
-/*	$OpenBSD: getentropy_linux.c,v 1.30 2014/07/21 20:19:47 guenther Exp $	*/
+/*	$OpenBSD: getentropy_linux.c,v 1.31 2014/07/21 23:34:54 deraadt Exp $	*/
 
 /*
  * Copyright (c) 2014 Theo de Raadt <deraadt@openbsd.org>
@@ -76,7 +76,7 @@ int	getentropy(void *buf, size_t len);
 static int gotdata(char *buf, size_t len);
 static int getentropy_getrandom(void *buf, size_t len);
 static int getentropy_urandom(void *buf, size_t len);
-#ifdef CTL_MAXNAME
+#ifdef SYS__sysctl
 static int getentropy_sysctl(void *buf, size_t len);
 #endif
 static int getentropy_fallback(void *buf, size_t len);
@@ -109,7 +109,7 @@ getentropy(void *buf, size_t len)
 	if (ret != -1)
 		return (ret);
 
-#ifdef CTL_MAXNAME
+#ifdef SYS__sysctl
 	/*
 	 * Try to use sysctl CTL_KERN, KERN_RANDOM, RANDOM_UUID.
 	 * sysctl is a failsafe API, so it guarantees a result.  This
@@ -131,7 +131,7 @@ getentropy(void *buf, size_t len)
 	ret = getentropy_sysctl(buf, len);
 	if (ret != -1)
 		return (ret);
-#endif /* CTL_MAXNAME */
+#endif /* SYS__sysctl */
 
 	/*
 	 * Entropy collection via /dev/urandom and sysctl have failed.
@@ -270,7 +270,7 @@ nodevrandom:
 	return -1;
 }
 
-#ifdef CTL_MAXNAME
+#ifdef SYS__sysctl
 static int
 getentropy_sysctl(void *buf, size_t len)
 {
@@ -300,7 +300,7 @@ sysctlfailed:
 	errno = EIO;
 	return -1;
 }
-#endif /* CTL_MAXNAME */
+#endif /* SYS__sysctl */
 
 static int cl[] = {
 	CLOCK_REALTIME,